Chapter 4
pH, pH/ISE and pH/LogR Measurement Modules
Thermo Scientific
Orion Versa Star Pro Meter User Manual
51
ISE Mode Menu (pH/ISE Module Only)
Main Menu
Settings
Details
Electrode SI No
----
Use the alphanumeric keypad to enter the electrode
serial number or clear all to shown no value (----)
Electrode Type
Ag+
BF4-
Br- Ca++
Set the ion selective electrode (ISE) being used.
If the type of ISE is not listed, select X- for
monovalent anion, X-- for divalent anion, X+ for
monovalent cation and X++ for divalent cation.
The type of ISE selected will set the expected
calibration slope range and slope direction as
positive or negative.
Cd++
Cl-
Cl2 ClO4
CN-
CO2
Cu++ F-
I-
K+
KF
Na+
NH3
NO3-
NOx O2
Pb++ REDOX S-- SCN-
X-
X--
X+
X++
Sample ID
Off, Manual, Auto Increment
Use the popup keypad screen to enter an
alphanumeric manual ID or a numeric value as the
starting value for auto incremental ID
Significant Digit
1 Digit, 2 Digit, 3 Digit,
4 Digit
Set how many significant digits will be shown for the
resolution of the measurement value
Stability
Smart, Fast, Medium, Slow Set when a measurement is recognized as stable
Averaging
Off, Automatic Smart
Set averaging for faster measurement stability
Read Type
Auto-Read, Timed,
Single-Shot, Continuous
For Timed and Single-Shot, set the time in hours,
minutes, seconds (HH:MM:SS) using the arrow keys
Measurement Unit
ppm, Molar, mg/L, %,ppb,
None
Set the displayed measurement units
Isopotential Value Off, On
Default value is 1.000
Linear Regression Off, On
Set point-to-point (Off) or single best fit (On) curve
Blank Correction
Off, On
Correct for non-linearity in low level ISE readings
Low Level Stability Off, On
Extend stability wait time for ISE calibration points
Alarm
Limit Alarm
Off, On
Set high and low limit values to activate alarm
Cal Due Alarm Off, On
Set a calibration interval (hours) to activate alarm
Set Point Alarm Off, On
Set a base and offset value to activate alarm
Detailed information on these features is available in the
Appendix
section of this user manual.
